All available data and reports on Disease and Nonbattle Injury (DNBI) rates for American forces during war and peace are reviewed and comparative rates by source are provided in tabular form. Comparative data based on the age/ race adjusted general US population are also presented. The Army Medical Department Theater Casualty Treatment/Evacuation simulation model is also described and it is proposed that DNBI planning rates be derived from this model. It is recommended that: (a) for the Central Europe scenario the DNBI rates projected by the AMEDD Theater Casualty Treatment/Evacuation Model be adopted (overall DNBI = 30.1/1000 active duty/day, hospital admissions DNBI - 7. 12/1000/day, held for treatment DNBI = 8.4/1000/day, and returned to duty (ambulatory) DNBI = 14.6/1000 day. (b) for other scenarios, the hospitalized DNBI rates now listed in Army Force Planning Data and Assumptions FY 1981-1990 (U) continued to be used, pending generation of new scenario-specific rates through the AMEDD modeling process. For overall DNBI rates the Central Europe figure should be used pending scenario-specific revision. (c) prospective data continue to be collected and incorporated in the modeling process.